--- product_id: 148772598 title: "8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10" brand: "cnbtr" price: "R418" currency: ZAR in_stock: true reviews_count: 6 url: https://www.desertcart.co.za/products/148772598-8mm-id-12mm-od-3-5mm-thickness-bearing-steel-mini store_origin: ZA region: South Africa --- # Smooth double-shielded ZZ design Precision 8x12x3.5mm sizing Durable bearing steel build 8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 **Brand:** cnbtr **Price:** R418 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your DIY game with precision that keeps you rolling smoothly! ## Quick Answers - **What is this?** 8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 by cnbtr - **How much does it cost?** R418 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/148772598-8mm-id-12mm-od-3-5mm-thickness-bearing-steel-mini) ## Best For - cnbtr enthusiasts ## Why This Product - Trusted cnbtr brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Premium bearing steel resists wear and tear, ensuring long-lasting reliability. - • **Engineered for Precision:** Exact 8mm inner and 12mm outer diameter for seamless fit and performance. - • **Versatile Industrial Use:** Perfect for machinery, power transmission, cycling, and DIY projects—upgrade your gear effortlessly. - • **Smooth & Silent Operation:** Double-shielded ZZ design keeps contaminants out and lubrication in for ultra-smooth rotation. - • **Pack of 10 for Value & Convenience:** Bulk pack ensures you’re always ready for maintenance or innovation without delay. ## Overview This pack of 10 MR128ZZ mini groove ball bearings features a precise 8mm inner diameter, 12mm outer diameter, and 3.5mm thickness, crafted from durable bearing steel with double-shielded protection for reliable, long-lasting performance across industrial and cycling applications. ## Description From the selection of raw materials to the testing of finished products, every link is strictly controlled to ensure that every pulley meets the highest quality standards. We are always ready to provide you with thoughtful service and support. Whether you encounter problems during product selection, purchase or use, we will answer and solve them for you. Our pulleys not only have excellent performance and durability, but are also beautiful and practical, able to meet the individual needs of different customers. ## Features - [Material] Made of bearing steel material, not easy to wear, and lasting performance. It's a great substitute for your product. - [Size]8 x 12 x 3.5mm/0.31 x 0.47 x 0.14"(ID x OD x T).Bearings have 8mm inner diameter, 12mm outer diameter, and 3.5mm.Please check the size carefully before purchasing. - Reliable Performance: Our bearings are precision engineered, ruggedly constructed, and perform reliably. - Usage Scenarios: Used in various industrial fields such as machinery, power transmission, transportation vehicles, construction machinery or household applications, etc. - Service: If an item is not suitable for the intended use or the item does not fit the dimensions, please contact us. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07M7H7RBC | | Bearing Number | MR128ZZ | | Bearing Type | Ball Bearing | | Brand Name | CNBTR | | Compatible Lubricant | Grease | | Customer Reviews | 4.5 4.5 out of 5 stars (33) 4.5 out of 5 stars | | Item Thickness | 3.5 millimeters | | Item Weight | 12 g | | Manufacturer | yqltd | | Material Type | Alloy Steel | | Model | M6190101158 | | Outside Diameter | 12 millimeters | | Part Number | M6190101158 | ## Product Details - **Bearing Number:** MR128ZZ - **Brand:** CNBTR - **Item Thickness:** 3.5 millimeters - **Item Weight:** 12 g - **Material:** Alloy Steel ## Images ![8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 - Image 1](https://m.media-amazon.com/images/I/71RJY9u4pkL.jpg) ![8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 - Image 2](https://m.media-amazon.com/images/I/71M8KtgaNyL.jpg) ![8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 - Image 3](https://m.media-amazon.com/images/I/71qVXngA2HL.jpg) ![8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 - Image 4](https://m.media-amazon.com/images/I/71p0dAvhfGL.jpg) ![8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 - Image 5](https://m.media-amazon.com/images/I/61poysmn2+L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good quality bearing for limited clearance *by on Reviewed in the United States April 6, 2025* These bearings were used to replace worn sleeve bearings for small lathe handwheel shafts. The small size outer race was appropriate for the minimal clearance available. The application is shaft stabilization in low speed application and for that purpose, these bearings are entirely satisfactory. ### ⭐⭐⭐⭐⭐ Well made, runs smooth, don't know the longevity yet. *by on Reviewed in the United States April 19, 2022* Well made, runs smooth, don't know the longevity yet. ### ⭐⭐⭐⭐ Nice bearings *by on Reviewed in the United States May 17, 2026* Bearing sizes were accurate. Smooth rolling action ## Frequently Bought Together - CNBTR 8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 - Arduino Nano Every [ABX00028] – ATmega4809, 48KB Flash, 6KB SRAM, 20 Digital I/O, 8 Analog Inputs, Micro USB Type-B, Compatible with Arduino IDE for Embedded Projects --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/148772598-8mm-id-12mm-od-3-5mm-thickness-bearing-steel-mini](https://www.desertcart.co.za/products/148772598-8mm-id-12mm-od-3-5mm-thickness-bearing-steel-mini) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-09-08*